Do you know the difference between a caduceus and the Cup of Hygieia? Or the Rx and the Staff of Asklepios? You may have been a nurse for a decade, but do you know where these historical symbols come from? Test yourself now.

Drug doses are one of the most important aspects of nursing. A calculation error, or a decimal point in the wrong place could be fatal for your patient! Here we have a selection of nursing calculations. Most are straightforward but be careful, it’s easy to make a mistake